There are eight defensemen left on the Bruins’ roster. And let’s face it, there are seven begging to be paired with Zdeno Chara.

However, only one will get to regularly skate next to the gigantic 2009 Norris Trophy winner.

While head coach Claude Julien has said that he might lean toward switching up his top pair depending on the offensive depth of the Bruins’ opponent, you’ll definitely have three set pairs to start the season and the coaching staff will work from there. I’d lean toward a more balanced set-up rather than putting Chara and Dennis Seidenberg, who’s essentially Boston’s No. 2 blueliner, together on a regular basis.

Here’s what my pairs would look like based on preseason performance and my personal individual projections for the players in question:

Pair #1
Zdeno Chara-Johnny Boychuk

This pair worked out great last year. If Boychuk continues to develop into a legit, top-four, two-way defenseman, it allows the Bruins to move Seidenberg to a second pair and gives Boston one of the best one-two slap-shot tandems on one pair in the league. Opposing would-be shot-blockers will be thinking twice before going for a slide across the ice. While he’s still not the most fleet-of-foot defenseman, Boychuk’s improved positioning and his ability to throw a timely momentum-turning hit make him a solid complement to Chara, who hasn’t shown any sign of slowing down as a shutdown defender despite his 33 years of age.

Pair #2
Andrew Ference-Dennis Seidenberg

This would be, by far, the Bruins’ best puck-moving pair. The team might swap a little shutdown ability for some offense, but that’s worth it for a team that might be hard-up for scoring again this year with a Savard-less, Sturm-less line-up. Those who are Ference detractors have to at least admit that when healthy, he has been one of the Bruins’ most reliable defensemen the last few years, and the team has missed him when he has been out. Seidenberg enjoyed a breakthrough season last year with the Bruins and Florida, and now it’s time to find out if he can earn that rich contract the Bruins gave him and carry a defense pair for an entire season. Should one of these guys not be able to handle a second-pair role, it could cause a terrible chain reaction through the Boston line-up.

Pair #3
Mark Stuart-Matt Hunwick

These two guys are both left shots who have struggled when asked to play the right side. Both get my nod to be in the opening-night lineup because they have the most upside at this point and time among the Bruins’ bottom four D on the depth chart. On paper, Stuart’s defense and physicality and Hunwick’s speed and offensive instincts should go together like peanut butter and jelly. Of course, it hasn’t always worked out that way. Hunwick has struggled to overcome his size disadvantage with strength and positioning, all while fellow youngsters like roster-dwellers Adam McQuaid and Matt Bartkowski has started to push him for his spot.

If Hunwick can find his form of ’08-09, he could make a move into the top four. Or if he continues to struggle, McQuaid could take his spot and give the Bruins a rugged third pair with Stuart. I would assume that once the Bruins return to North America, Bartkowski will join Providence — the trip to Europe a bit of a reward to the rookie for leaving Ohio State early and producing an excellent camp.

As the season unfolds, the Bruins have to hope one of two things happen:

1. Their projected depth up front allows them to move a forward for a top-four defenseman in a trade;

2. At least two of the bottom four emerge as a legit, two-way second pair. All four men in those roles have legitimate question marks surrounding their potential play and ability to do it.

Of course, I’m not even factoring the inevitable injuries that will hit one or two of these guys. But in my mind, even when 100 percent healthy, depth on defense is the Bruins’ biggest weakness heading into this season.

There’s no question their depth at D is their biggest concern. It’s no better than last year, and maybe even a tad worse. Losing Morris and Wideman for Seidenberg is no upgrade on the blue-line. And their D in the pipeline are just as inexperienced; just a year older.

In five years, perhaps, their D will be deep. But for now, after their top-3, they are average at best.

I too am concerned about the defense. I am not strong on Ference, and never have been, so seeing him moved would not bring tears. Hunwick was a favorite in his first full year, but the loss of a kidney seems to have had a negative effect and promotes new concerns. Savvy’s loss has created a new challenge, and Claude has to rid himself of Ryder. Actually, as strong as Chara has been, I’d prefer a defense like Nashville has in shea weber et all.

I don’t like the defense on this team. It is very, very thin. That said, I think Chara and Boychuck must play together. I think Seidenberg is a #3 defenseman. He is not a top pairing defenseman on a championship team. They must make a trade (I will trade almost anything except the Toronto first rounder…do they have Tor’s second rounder too?) for a top defenseman. With Savard out a while, maybe all year, and the uncertainty of Ryder and Sturm, there is cap room believe it or not. Make a trade. Wheeler and the Bruins’ first rounder (likely a pick over #23). That should get something in return.

I like Ference, just not at his price. He is waaaaaay overpaid. He is almost as overpaid as Ryder is. I like him in the third pairing. I would put Stuart out there with Seidenberg because someone will need to do the hitting out there and it won’t be Seidenberg or Ference. I have got Ference and [insert defenseman here – Hunwick, Kampfer, Bartowski, McQuaid] on my third pairing.

Just typing this out makes me realize how thin they are at defense. Yikes. Just whatever you do, don’t trade for Souray or Redden.

“As the season unfolds, the Bruins have to hope one of two things happen:
1. Their projected depth up front allows them to move a forward for a top-four defenseman in a trade;”

—–Two questions: Who might be the forward that they move? (the guys that could bring value in return I would hate to lose).
Would it require Boston to include a draft pick(like their own 2011 first rounder, knowing that they have the Leafs 1st) in order to get the return of a quality puck-moving D ??

I like the splitting up of Chara and Seidenberg for that balance. Big Z and Boychuk had some good chemistry last spring.

I wanted a more hungry better Hunwick to come to camp and it is not there. It would be a mistake to send Bartkowski to Providence as he is out playing Hunwick big time! Protects the puck better and throws that 6′ 1″ frame around plus he’s real confident with his breakout passes.

I have a sneaky suspicion Hunwick might get traded leaving McQuaid and Bartkowski 6 and 7 Dmen spots. Garth Snow needs a Dman n Hunwick needs a change of address.